inet_dev_count++;/* Reference in_dev->dev */dev_hold(dev);#ifdefCONFIG_SYSCTLneigh_sysctl_register(dev, in_dev->arp_parms, NET_IPV4, NET_IPV4_NEIGH,"ipv4");#endifwrite_lock_bh(&inetdev_lock); dev->ip_ptr = in_dev;/* Account for reference dev->ip_ptr */in_dev_hold(in_dev...